Refrigerator.



` 1. HEPETTO.

REFRGERATOR. 5.PL1CAT`I0N FILED SEPT. 24. 191s.

2 Es y f Patented Mar. 28, 1916.

UNITED STAT-ES PATENT OFFICE.

JEAN RFPETTO, 0F CANNES, FRANCE.

^ REFRIGERATOR.

To all whom it may concern Be it known that I, JEAN REPETTO, mechanical engineer', citizen of the French Republic, residing at Cannes, Department of Alpes Maritimes, in France, havmg postc-ilice address Au Riou, in the said city, have invented certain nev' and useful Improvements in Refrigerators; and I do hereby declare the following to be a full, clear,

and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. l

The present invention relates to refrigerating apparatus for compressing and liquefying' ammonia, carbonio acid, sulfurous acid and similar gases, to be' subsequently expanded and thus utilized for refrigerating purposes.

The object of the invention is to provlde such an apparatus, the parts of which are so grouped and related as t0 produce a compact structure.

A further object of the invention 1s to so construct the apparatus that the necessity of using regulating valves is obviated, and as the improved apparatus reduces the number of joints between the moving parts to a mlmmum, practically all danger 1s elimlnated and leakages are rendered practically impossible.

The invention is illustrated in the accompanying drawing, in which:-

Figure 1-is a vertical transverse section of the improved refrigerating apparatus taken on the line A-A of Fig. 2; and Fig. 2 is a vertical longitudinal section of the same apparatus taken on the line B-B of Fig. 1.

Referring to the drawing, it will be seen that the apparatus comprises a rectangular casing 1, within which all of the parts of the apparatus are located. A horizontally disposed cover-like frame 2 rests upon the top edges of the casing 1, and rotatably supports, o-n its upper surface, the actuating shaft 4 which is journaled in bearings 3 mounted on said frame 2. The actuating shaft 4 may be driven by means of a pulley 25, which, in turn. may be driven from any suitable source of power.

Secured to the under side of the cover-likel frame 2 are two depending brackets 23 and 24. The bracket 23 is bored out to form the compressor cylinder 6, in which a doubleheaded piston 9 is mounted to reciprocate.

Specification of Letters Patent.

Patented Mar. 28, 1916.

Application filed September 24, 1913. Serial No. 791,538. v

The piston 9 is actuated from a rock shaft 5 rigidly carrying a rock arm 11, to which the piston is connected by means of a link 10. The end of the rock shaft 5 opposite the compressor is journaled in the depending bracket 24, as will be clear from Fig. 2. The rock shaft 5 is actuated by means of an arm 14 rigidly secured thereto and disposed adjacent to the depending bracket 24, and connected by means of a pitman 13 to the crank 12 of the actuating shaft 4. It will, therefore, be seen that as the actuating shaft 4 rotates. the pitman 18 is reciprocated, thereby oscillating the arm 14 and rocking the shaft 5 to effect reciprocation of the piston 9. In order to prevent leakages around the rock shaft 5, a packing 15, of pliable but impermeable material, is employed. This packing may be in the form of a cylindrical sleeve and may be made of india-rubber, leather, or similar material. As will be seen from Fig. 2, the rock shaft 5 is supported for'the greater part of its length in a sleeve 16 formed on the bracket 23, and the packing 15, just referred to, is interposed between said sleeve 16 and the rock shaft 5.

The condenser coil is shown at 17, and is mounted in the casing 1 between the depending brackets 23 and 24. One end of the coil 7 communicates, by means of pipes 19,

with the compressor, and the other end of the coil discharges into a receptacle 8 adapted to receive the liquefied gas condensed in the coil 7.

The receptacle 8 contains a float valve, indicated at 21, which controls the supply of the liquid to a pipe 22, which conducts the liquefied gas to the placewvhere itlis to beV utilized for refrigerating purposes.. "A return pipe 18 scrves to return the gas back to the compressor, where it is compressed, 1

and then delivered to the condensing coil 7.

The operation of the apparatus is as follows z-The liquefiable gas is delivered, by means of the pipe or conduit 18, to the compressor, Where it is compressedfand then delivered to the condensing coil 7. it being understood that the casing 1 is filled with water to keep the compressor, the coil 7 and the receptacle 8, cool. The compressed gases are condensed in the coil 7 and are then delivered in their liquefied form to the receptacle 8. The float valve in the receptacle 8 prevents the liquid from backing up into the coil 7, as the liquid is discharged from the the pipe 18 to the compressor.

It will be noted that as all of the parts are immersed in cooling water, the compressor and the receptacle 8, as well as the condenser coil 7, are kept cool. The liquid in the receptacle 8 is, therefore, maintained at a low temperature and is delivered through the pipe 22 in a cool condition. The joint between the rock shaft 5 and the sleeve 16 is the only place where the gas is likely toescape, but as the casing l is filled with wa ter, no harm can be done by the escape of gas at this point, as the water Will absorb the gas so escaping. The float valve in-the receptacle 8 eliminates the necessity of using regulating valves which are objectionable, in that they will not prevent the backing up of the liquid into the condenser coil, as will the float valve, norwill they prevent unliquefled gas from passing to the refrigerator, as will the float valve.

- Obviously, many changes and-modifications may be made without departing from the spirit or scope of the invention, as de.

lined in the accompanying claims.

1. Refrigerating apparatus comprising a casing, a c ondensercoil located therein, a receptacle into which said coil discharges also located in said casing, and a bracket depending in the casing, a portion of the bracket being bored out to form a comn pressor cylinder, a compressing piston mounted therein, and `means to actuate said piston.

2. Refrigeratin apparatus comprising a casing, a pair, of rackets depending therein, one of the same being bored out to form a compressor cylinder, a compressing piston. mounted therein, a rockshaft connected to said pistonto actuate the same, one end of said shaft being supported by the other bracket, and means to actuate the rock shaft.` Y 3. Refrigerating apparatus comprising a casing, apair of brackets depending therein, a compressor associated with one of said brackets, a shaft supported by and eXtending between said brackets, a condenser coil located in the casing between the brackets, a receptacle also located in the casing and into which said coil discharges, and means to actuate said rock shaft.

4. Refrigerating apparatus comprising a` casing, a pair of brackets depending therein, a compressor associated with one of said brackets, a shaft supported by and extending between said brackets, a condenser coil located in the casing between the brackets, a-

receptacle also located in the casing, and an actuating shaft supported above said casing and connected to said rock shaft.

5. In a refrigerating apparatus, a casing, a pair of brackets depending therein, a comu pressor associated with one of said brackets, such bracket having a relatively long laterally projecting sleeve-like portion, a rock shaft mounted in said sleeve-like portion and havingone of its end portions journaled in the other of said brackets, means for operating said compressor from saidl rock shaft, and packing material'interposed between said sleeve-like portion and the rock shaft substantially throughout the length of said sleeve-like portion.

In testimony whereof I aflix my signature, in presence of two witnesses.

JEAN REPETT. Witnesses EDMOND SEISSEIRE, ANDR DEvuNE'r. 

